public void AddByIndexNegativTests(int[] array, int index, int value, int[] expArray)
{
DoubleLinkedList expected = new DoubleLinkedList(expArray);
DoubleLinkedList actual = new DoubleLinkedList(array);
Assert.Throws <IndexOutOfRangeException>(() => actual.AddElementByIndex(index, value));
}
public void AddByIndexTest(int[] array, int index, int value, int[] expected)
{
DoubleLinkedList Expect = new DoubleLinkedList(expected);
DoubleLinkedList actual = new DoubleLinkedList(array);
actual.AddElementByIndex(index, value);
Assert.AreEqual(Expect, actual);
}